The Tube 300 8 Tr 87 Valve Stem is a high-quality inner tube designed for use in various types of tires. Its key features include a durable construction, a TR 87 valve stem for easy inflation, and a size of 300-8. The benefits of this product include reliable performance, long-lasting durability, and compatibility with a wide range of tire sizes. Its unique selling points are its high-quality materials, precision engineering, and ease of use.